Make homemade garlic powder by slicing garlic cloves thinly and baking them in the oven until they're crisp. Grind the garlic slices into a smooth powder using a coffee or spice grinder. You will love this DIY garlic powder recipe which tastes so much better than store-bought!
Preheat oven to 170 degrees F (if yours doesn’t go that low, anything from 150-190 degrees F is fine).
Separate the cloves from the head of garlic, peeling each clove. Slice each clove in thin slices. 12 heads of garlic will equal about 1 cup of garlic powder, 6 heads will equal ½ cup and 3 heads will equal ¼ cup.
Line a large baking sheet with parchment paper, and then place sliced garlic on top, making sure they don’t overlap.
Place them in the oven and bake them until they are crisp (but not burned). The goal is to make them crisp enough so you can snap it in half. This will take from 3-7 hours depending on oven temperature and how thin you sliced the garlic. Keep a close eye on the garlic during this process to ensure they reach the desired crispness. I check my garlic at every hour, and then when it gets closer, every 30 minutes.
Allow to cool and then place the garlic slices in a coffee or spice grinder. You might need to do this in batches depending on how much garlic you dried. Grind until you have a smooth garlic powder. After I grind I like to sift to make sure to remove any larger pieces that didn’t grind up.
Store garlic powder in an airtight spice jar in a dark, cool cabinet. Garlic powder will stay fresh for 3 years if stored properly.
Use as needed and enjoy your homemade garlic powder! One clove of garlic equals 1/8 teaspoon garlic powder.