Balsamic Brussels Sprouts

Ingredients (9)

• + 1 ½ pounds Brussels sprouts, trimmed add to pantry
• + 2 tablespoons olive oil add to pantry
• + 1 onion, thinly sliced add to pantry
• + 2 cloves garlic, minced add to pantry
• + ¼ cup balsamic vinegar add to pantry
• ✓ 2 tablespoons butter
• ✓ 1 teaspoon salt
• + ½ teaspoon ground black pepper add to pantry
• ✓ ½ teaspoon garlic powder