Sourdough Zucchini Muffins with Crumble Topping
Using both sourdough discard and grated zucchini, this recipe turns summer excess into moist and flavorful muffins. The bottoms are a glistening golden-brown, while the domed tops are adorned by a buttery cinnamon-sugar crumble.
Ingredients
Crumble Topping
- 95 grams (⅔ cup) all-purpose flour
- 71 grams (⅓ cup) brown sugar
- 3 grams (1 tsp) cinnamon
- pinch of salt
- 56 grams (4 tbsp) butter melted
Muffins
- Butter for pan
- 142 grams (1 cup) all purpose flour
- 100 grams (½ cup) sugar
- 3 grams (½ tsp) salt
- 8 grams (2 tsp) baking powder
- 1.5 grams (¼ tsp) baking soda
- 150 grams (1 packed cup) coarsely grated zucchini or other summer squash
- 167 grams (⅔ cup) sourdough discard 100% hydration
- 50 grams (¼ cup) vegetable or canola oil
- 2 large eggs
- 5 grams (1 tsp) vanilla extract
Instructions
- Preheat oven to 425°. Butter and flour 10 of the cups of a standard 12-cup muffin pan, including the area around the cups.
- Prepare the crumble topping: In a small bowl mix together 95 grams (⅔ cup) flour, brown sugar, cinnamon, and a pinch of salt. Add melted butter and stir until a crumbly mixture forms. Set aside.
- In a medium mixing bowl combine 142 grams (1 cup) flour, 100 grams (½ cup) sugar, 3 grams (½ tsp) salt, baking powder, and baking soda. Whisk to fully combine.
- In a large bowl or the bowl of a stand mixer, beat together squash, sourdough discard, oil, eggs, and vanilla extract until evenly combined.
- Add dry ingredient mixture to wet ingredient mixture. Mix with a rubber spatula or wooden spoon until ingredients are just evenly incorporated, avoid over-mixing (batter will be lumpy).
- Divide batter into the 10 buttered muffin cups, filling the cups full or nearly full. Top each generously with crumble topping (there should be no leftover topping).
- Bake 5 minutes then reduce heat to 350° and bake another 15-20 minutes, or until a toothpick inserted in the middle of a center muffin comes out with a few moist crumbs. Allow to cool in pan for 10 minutes, then remove to a wire rack to cool completely.