Preheat oven to 375 degrees. Combine butter and sugar in a bowl then whisk to combine. Add eggs then whisk to combine, and then add buttermilk and whisk to combine.
In a separate bowl, whisk together baking soda, cornmeal, flour, and salt then whisk into the wet ingredients in two batches.
Spray a mini muffin tin very well with non-stick spray then spoon 1 Tablespoon batter into each mini muffin cup. Place one hot dog bite into the middle of each cup.
Bake for 8-12 minutes or until cornbread is golden brown. Cool in mini muffin tin for 5 minutes before serving. Store leftovers in the refrigerator then re-heat for 20-30 seconds before serving.
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Notes
Feel free to use your favorite store-bought cornbread mix instead of making your own. I like Krusteaz Gluten Free Corn Bread!