Muhammara (Roasted Red Pepper Walnut Spread)

Ingredients (for 4 servings)

• 2 whole — large red bell peppers • 1/2 cup walnuts • 1/3 cup breadcrumbs • 1 garlic clove • 2 tbsp olive oil • 1 tbsp pomegranate molasses • 1 tbsp lemon juice • 1/2 tsp ground cumin • 1/4 tsp chili flakes, optional • Salt, to taste