Heat oven to 400°F. Place a greased 10-inch skillet inside to preheat.
Whisk cornmeal, flour, sugar, baking powder, baking soda, and salt in a large bowl.
Stir buttermilk, yogurt, melted butter, and honey in a separate bowl until smooth.
Combine wet and dry just until no flour streaks remain. Do not overmix.
Fold in jalapeños, cheddar, corn, and scallions until evenly distributed.
Swirl oil in the hot skillet. Pour in batter and smooth the top.
Bake 20–24 minutes until golden and a tester comes out clean.
Cool 10 minutes. Slice and serve warm with butter or extra honey.