The Ultimate Berry Crumble

Ingredients (15)

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