Banana Biscoff Muffins

Name: Banana Biscoff Muffins
Ingredients: 1 1/4 Cup all purpose flour; 1/2 Teaspoon vanilla extract; 1/4 Teaspoon salt; 1/2 Teaspoon baking soda; 1 large egg; 1/2 Teaspoon ground cinnamon; 6 Tablespoons granulated sugar; 1/4 Cup non-fat plain orvanilla yogurt; 1/4 Cup Biscoff Spread or cookie butter; 2 medium bananas, mashed; 1/3 Cup brown sugar, lightly packed; 1/4 Teaspoon ground cinnamon; 2 Tablespoons old fashioned oats; 3-4 speculoos cookies, crushed; 2 Tablespoons all purpose flour