Here is what you will need for the crumble topping.– ⅓ cup all-purpose flour– ¼ cup white whole wheat flour– 2 tbsp brown sugar– ¼ tsp cinnamon– pinch nutmeg– pinch kosher salt– 3 tbsp unsalted butter melted– 2 tbsp pure maple syrup
Here is what you will need for the muffin batter.– ½ cup Greek yogurt or sour cream)– ¼ cup mild cooking oil– 1 egg– 1 ⅓ cups all purpose flour– ⅔ cup brown sugar– ½ tsp baking soda– ½ tsp kosher salt– 1 ½ cups strawberries quartered– 1 ½ cups rhubarb diced