Blueberry Pie With Crunchy Crumb Topping

Jump to Recipe Print Recipe

Before I went to culinary school, I only made pies very infrequently. I also found the fruit pies I made did not turn out very well, with the bottom crust sometimes soggy, sometimes underbaked, and the filling often too liquidy. I found pie crust hard to get right. I always joked that older people are usually good at making pies because it takes about 40 years to get it right, which is a bit of an exaggeration. But I quickly learned you could get good at making pies very quickly, and it’s because there is a better way. Or, more accurately, two better ways.

The traditional way of making a fruit pie that most recipes use is known as the old fashioned method. Mix up all the filling ingredients, dump them into the pie crust, stick it in the oven and hope for the best. It’s simple, it’s traditional, and it sucks. Sure, you might get lucky and it will turn out okay. But there’s just as good of a chance it will be disappointing. The dreaded soggy bottom that I mentioned, filling that isn’t fully baked, filling that never comes together and falls apart when cutting into the pie, etc.

The two alternate ways of making a fruit pie are known as cooked fruit method and cooked juice method. Cooked fruit works well for fruits that can withstand cooking on the stove top, like apples. As you may have guessed, blueberries do not fall into that category.

Instead, with blueberries and cherries, you let some of the juice drain out of the berries (which works better with frozen blueberries than fresh, and makes less of a difference with cherries). You then take that juice, add water to get the needed amount, and boil it in a sauce pot with some of the sugar. Beat in a cornstarch slurry (cornstarch plus cold water beaten together) and cook until it goes from a cloudy, opaque look to a translucent color. You then add the additional sugar, salt, lemon juice and cinnamon and let it boil until the sugar dissolves. Pour it over the blueberries, gently stir it all together and let it cool. Then pour it into your parbaked pie crust, top as desired and bake until the liquid has a slow, bubbly look. Think bubbling lava, not boiling water. When it cools off, you refrigerate it to let it set up the rest of the way.

Why is this better? The starch gets a bit of a head start, so it sets up faster in the oven. The berries spend less time in the oven, so they are more likely to stay intact inside the pie. The crust is parbaked, so it’s less likely to get soggy on the bottom. What is the downside? Time. It definitely takes longer to make a pie like this than one using the old fashioned method, but with proper preparation, it’s really not that bad.

If I am using frozen blueberries, I measure out what I need into a colander inside of a larger bowl. Then I make the dough for the crust. The crust can either go into the freezer for about 30 minutes, or the refrigerator for a couple of hours. I usually do the freezer, but will sometimes make the dough a day in advance and just refrigerate it. I then measure out the other components separately. Sugar in a pot (waiting for the juice plus water mix), cornstarch and cold water in a cup (don’t bother whisking it until it’s about to go in, because it will quickly separate and settle if it sits for a while), additional sugar/salt/cinnamon in another bowl with the lemon juice measured out on the side. I then take my pie crust out of the freezer, roll it out and parbake it. If the berries are thawed out now, I start making the filling. If not, I’ll make the topping. Then I cook the filling. If you try to stick to a rigid order, you run the risk of spending a lot of time waiting for the berries to thaw and not getting things done that you will need to do.

For pie crust, I find using a pastry blender works best. I have tried using a food processor or a stand mixer, but was never happy with the results. I would almost always overmix the dough, which is obviously a bigger problem when using regular flour than gluten free, but not good either way. To parbake it, you have three options; poke a bunch of holes into the dough with a fork and hope it doesn’t puff up too much in any areas (it can work, but not always), use pie weights, or use dried beans. I bought two bags of dried kidney beans for less than half the cost of one set of weights. You use them the same way, and you can reuse them as much as you want. So if someone is buying you the things to make a pie, have them buy weights. If you are spending your own money, get beans. Just my advice.

The topping is a fairly standard oat filled streusel, but vegan and gluten free. I also use a pastry blender to cut the vegan butter in (just like the pie dough). I have found that if you spread it too thick, it doesn’t always become crunchy in those spots, so try to keep it even.

And that’s it! Okay, it is a lot. Pies are not easy to make, until you get good at the whole process. They are still more time consuming than some baked goods, but they don’t need to be frustrating. Go with the right method and prep what you can ahead of time and that will take care of 99% of the headaches.

Blueberry Pie With Crunchy Crumb Topping

A classic blueberry pie, with notes of cinnamon and lemon, topped with a crispy, crunchy topping. Makes one 9" pie.
Course Dessert
Cuisine American

Ingredients
  

Crust

  • 1/2 cup brown rice flour 79 grams
  • 6 tbsp white rice flour 60 grams
  • 1/2 cup tapioca starch 60 grams
  • 3/4 tsp xantham gum
  • 1/4 tsp baking powder
  • 1.5 tbsp sugar
  • 5 tbsp vegan butter cold, chopped into cubes
  • 6 tbsp water cold

Crunchy Oat Topping

  • 1/2 cup brown sugar packed
  • 5 tbsp +1 tsp brown rice flour
  • 2 tbsp +2 tsp tapioca starch
  • 1/2 tsp cinnamon
  • 1/2 cup oats
  • 3.5 tbsp vegan butter

Pie Filling

  • 5 cups frozen blueberries 27 ounces, thawed, reserve juice
  • 1/4 cup drained juice plus water
  • 4.5 tbsp sugar 2 ounces
  • 1/4 cup cold water 2 ounces
  • 3.75 tbsp cornstarch 1 ounce
  • 2/3 cup sugar 4.7 ounces
  • 1/2 tsp salt
  • 1/2 tsp cinnamon
  • 1 tbsp lemon juice

Instructions
 

Crust

  • Whisk all dry ingredients together in a a medium mixing bowl. Using a pastry blender, cut the butter in until it makes pea sized pieces. Add water and stir together until it forms a dough.
  • Wrap dough in plastic or in parchment. Put in freezer for 30 minutes before rolling out, or refrigerate for at least 1 hour.
  • Roll out between two sheets of parchment or plastic wrap, lightly dusting surfaces with white rice flour. Gently place into pan. Bake in a 350º oven for 5-7 minutes. Let cool before using.

Pie Filling

  • Thaw blueberries, reserving juice. Add water to juice to make required amount.
  • Bring water/juice mixture and first amount of sugar to a boil in a small sauce pot. Whisk in cornstarch slurry. Continue whisking until appearance goes from cloudy to translucent.
  • Whisk in second sugar, salt, cinnamon, and lemon juice. Stir constantly until sugar dissolves.
  • Pour over blueberries. Gently stir together until combined. Let cool before pouring into pie crust.

Crunchy Topping

  • Whisk all dry ingredients together in a medium sized bowl. Cut butter in with a pastry blender.

Pie Assembly

  • Pour cooled filling into cooled crust. Sprinkle topping on and spread evenly. Bake in a preheated 425º oven for 30-35 minutes. Liquid should be slowly bubbling and crust should be golden brown. Let cool completely before slicing.
Keyword Dessert, Gluten Free, Vegan