Banana Muffins with Crumbs Topping

Simple banana muffins with crumbs topping are standouts.

Ingredients:
1 cup cake mix
1 large ripe banana, mashed (about 1 cup)
2 tbs sugar
1/3 cup nonfat yogurt
1 tsp vanilla
1 egg
2 tbs chia seeds gel (1 tsp chia seeds with 1/4 cup water)
2 tbs coconut oil
Crumbs topping:
1/4 cup brown sugar
2 tbs butter
2 tbs chopped walnuts
2 tbs all-purpose flour
1 tsp cinnamon

Directions:
Preheat oven to 375°. Line 8 muffin tins with muffin tin paper liners and set aside.
Place sugar, chia seeds gel, vanilla, coconut oil, and egg in a bowl and beat together until light and fluffy. Stir in mashed banana and nonfat yogurt. Fold the cake mix into the batter.
Spoon the batter into the paper liners.
In a small bowl, combine crumbs topping ingredients. Top the batter in paper liners with crumbs topping. Bake in the preheated oven for 20 minutes, or until risen, golden, and firm to the touch. Remove from oven and let cool.