How to Make It
Preheat oven to 400°F. Lightly coat 8 muffin cups with cooking spray.
Combine cornmeal and next 5 ingredients (through baking soda) in a large bowl. Combine sour cream, oil, and eggs in a bowl, stirring with a whisk. Add sour cream mixture to cornmeal mixture, stirring just until combined. Fold in jalapeños and cheese.
Divide batter evenly among prepared muffin cups. Bake at 400°F for 12 to 15 minutes or until a wooden pick inserted in center comes out clean. Cool in pan for 5 minutes.