In a non-stick pan on medium heat, add 1 tablespoon of butter and sliced apples and saute for 5 minutes.
4 Apples, thinly sliced
Then add 3 teaspoon of sugar and continue sauteing it for another 3 to 5 minutes. Switch off the flame. Transfer this to a bowl and keep this aside.
Add the remaining ¼ cup butter to the same non-stick pan. Once the butter melts, add all-purpose flour. Reduce the heat to medium-low and saute the flour for about 90 seconds so that a paste is formed.
¼ cup + 1 tablespoon Butter, 3 tablespoon All-purpose flour
Add sugar, brown sugar, water, and lemon juice to this and simmer it for 3 minutes.
3 teaspoon + ½ cup Sugar, ½ cup Brown sugar, ¼ cup Water, 1 teaspoon Lemon juice
Add cinnamon, nutmeg, vanilla extract, and salt, and continue cooking for 1 minute.
1 teaspoon Cinnamon powder, ⅛ teaspoon Ground nutmeg (optional), 1 teaspoon Vanilla extract, Salt, a pinch
Transfer ⅔ of the sauce to the sauteed apple bowl, add blackberries, and mix well.
6 oz Blackberries
Keep the remaining ⅓ sauce on the lowest flame while you assemble the pie.