Preheat Oven: Set your oven to 375°F (190°C).

Mix Dry Ingredients: In a large bowl, whisk together the all-purpose flour, baking powder, and salt until well combined.

Combine Wet and Dry Mixtures: Add the ground spicy sausage, shredded extra sharp cheddar cheese, softened butter, and diced jalapeños to the dry ingredients. Using your hands, mix until all components are evenly incorporated.

Form Sausage Balls: Roll the mixture into 1-inch balls, placing them on a parchment-lined baking sheet with space between each ball.

Bake: Place the baking sheet in the preheated oven and bake for 18-20 minutes, or until the sausage balls are golden brown and cooked through.