Preheat oven to 350 degrees
start by buttering pan that you are using and set aside- I used a 10 inch cast iron skillet- if using a cast iron, butter it and place it in the oven to heat up, while you get the rest of your ingredients ready, so that you can ensure a crispy crust and even baking.
In a large bowl, bring together all of your dry ingredients, whisk and set aside
in a smaller bowl, combine all of your wet ingredients except for the jalapeno and cheddar cheese
pour wet ingredients over dry ingredients and whisk until just combined. add the jalapeno and cheddar cheese and continue to whisk until just combined- clean edges of bowl with a spatula-
take hot cast iron skillet out of the oven and pour the batter into the skillet
bake for 25-30 minutes or until a toothpick inserted in the middle comes out clean and top looks golden in color
leave out at room temp for a couple of days. I leave it inside the cast iron and lay a towel on top or cover in aluminum foil. This doesn't last long in my house though!