Roasted Garlic and Sweet Potato Crostini | Saveur

Ingredients

• 3 heads garlic
• 1 tbsp. olive oil, plus more for drizzling
• ³⁄₄ cup sour cream
• ¹⁄₂ tsp. lemon zest
• 1 tbsp. roughly chopped capers, plus more for topping
• ¹⁄₄ tsp. crushed red pepper flakes
• Kosher salt and freshly ground black pepper, to taste
• 1 medium sweet potato, peeled and cut into 1/2" pieces
• 1 loaf ciabatta, sliced diagonally 1/2" thick