Apple Crumble Muffins

Muffin batter:

1 large honeycrisp apple, peeled and diced small
½ cup sugar
1 egg
¼ cup avocado oil
1 tsp vanilla
1 cup 1-1 flour
1 tsp baking soda
1 tsp ground cinnamon
½ tsp. salt

Topping:

3 tbsp cold butter, cut into ½ inch pieces
1/3 cup 1-1 flour blend
2 heaping tbsp GF oats
3 tbsp dark brown sugar

Put racks in top 1/3 of oven and preheat to 325 degrees. Line 12 cupcake cups with paper liners.

Toss apples and sugar in a large bowl. Whisk together eggs, oil, vanilla in a small bowl. In another small bowl stir flour, baking soda, cinnamon and salt with a fork. Stir egg mixture into apples and then add flour mixture and stir until combined and all dry ingredients are incorporated. Divide batter into 12 muffin cups.

Using the bowl from the flour, add all topping ingredients and rub together with your fingertips until crumbly. Top each cup of batter, dividing evenly. Bake until golden and crisp and until a toothpick inserted in center comes out clean, about 20-25 minutes. Cool before removing from tin.