Prep the slow cooker: Line the bottom and about halfway up the sides of your crockpot with a piece of parchment paper. This prevents sticking and helps you lift the loaf out easily.
Lightly grease the parchment with a bit of oil or nonstick spray.
Mix the dry ingredients: In a large bowl, whisk together the flour, sugar, baking powder, salt, garlic powder, Italian seasoning, onion powder, and pepper until evenly combined.
Add the wet ingredients: Pour in the beer and the olive oil or melted butter. If using minced fresh garlic, stir it in now. Use a spatula to fold the batter just until no dry streaks remain.
The batter will be thick and a bit sticky.
Shape and load: Scrape the batter into the lined slow cooker and smooth the top with a spatula. For a little extra flavor, brush the top with a teaspoon of oil or butter.
Cook low and steady: Cover the crockpot with its lid and cook on High for 2 to 2.5 hours, or until the top is set and a toothpick inserted in the center comes out clean. If your slow cooker runs hot, start checking at 1 hour 45 minutes.
Dry out the top (optional): If condensation drips onto the lid, wipe it off midway to avoid soggy spots.
You can also place a clean kitchen towel under the lid to catch condensation, making sure it doesn’t touch the bread.
Finish the crust: Once done, lift the bread out by the parchment and place it on a wire rack. Brush the warm top with a little melted butter and sprinkle flaky salt and fresh parsley if using. Let cool at least 20–30 minutes before slicing.
Slice and serve: Use a serrated knife to slice.
Serve warm with butter, alongside soup, or with a cheese board.