Preheat the oven to 425.
Add 2 cups of cheddar, cream cheese, beer, garlic powder, smoked paprika, and salt to a blender or food processor. Blend until smooth.
Cut the bread diagonally in 1-inch slices (about ¾ of the way though, do not cut all the way through the bread leave the bottom crust in tact). Turn the bread and cut in the same manner to create a diamond crosshatch pattern with the bottom crust still intact.
Use a small spatula or butter knife to spread the cheese mixture into the cut marks.
Add the loaf to a baking sheet covered with parchment paper. Top with remaining cheese. Sprinkle with bacon.
Bake for 10minutes or until the cheese has melted.
Sprinkle with green onions, serve warm.