In a mixing bowl, combine cornmeal, flour, baking powder, and salt.

In another bowl, whisk together buttermilk and egg.

Combine the wet and dry ingredients until just mixed.

Fold in the cheddar cheese and jalapenos.

Heat oil in a fryer to 350°F (175°C).

Drop spoonfuls of the mixture into the hot oil.

Fry until golden brown, about 3-4 minutes.

Remove and drain on paper towels.