The Ultimate Berry Crumble

By Chef John

4.77 / 5

15min

40min

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2 cups all-purpose flour
¼ teaspoon fine salt
¾ teaspoon baking powder
¾ cup white sugar
¾ cup frozen unsalted butter
1 ½ teaspoons vanilla extract
2 large egg yolks
1 teaspoon apple cider vinegar or as needed
1 cup blueberries
1 cup raspberries
1 cup blackberries
1 teaspoon lemon zest
2 teaspoons fresh lemon juice
⅓ cup white sugar
2 teaspoons cornstarch
1 pinch cayenne pepper