Making Cheesy Thumbprint Appetizers with Hot Pepper Jelly is straightforward if you follow these simple steps:

1. Preheat the Oven: Set your oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. Mix Flour and Salt: In a medium bowl, combine the all-purpose flour and salt. Set aside.
3. Cream Butter and Cheeses: In a separate large bowl, cream together the softened butter, cheddar cheese, and cream cheese until smooth and fluffy.
4. Add Dry Ingredients: Gradually incorporate the flour mixture into the creamed cheese mixture, stirring until well combined.
5. Form the Dough: Scoop out tablespoon-sized portions of the dough and roll them into balls. Place them on the prepared baking sheet.
6. Create Indentations: Use your thumb to press gently into the center of each ball, forming a small indentation.
7. Bake: Place the baking sheet in the preheated oven and bake for 15-20 minutes, or until the edges start to turn golden brown.
8. Cool: Remove the appetizers from the oven and let them cool slightly on the baking sheet for about 5 minutes.
9. Add Hot Pepper Jelly: Once cooled, place a small dollop of hot pepper jelly into each thumbprint indentation.
10. Garnish: Optionally, top with finely chopped chives or parsley for added color and flavor.

By following these straightforward steps, you’ll create an extraordinary appetizer that’ll impress everyone.