- Preheat oven to 375 degrees. In a large bowl, whisk together dry ingredients. In a separate bowl, whisk together buttermilk, eggs, and melted butter; add to dry ingredients, stir well. Fold in poblanos and bacon.
- In a 12-inch cast-iron skillet over high heat, cook bacon grease until shimmering; pour batter into skillet and then transfer to oven. Bake until top is lightly browned, about 50 minutes.