Sweet & Smoky Caramelized Onion Hummus

Name: Sweet & Smoky Caramelized Onion Hummus
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Mediterranean, Middle Eastern
Ingredients: 500 grams canned chickpeas (approximately 30oz (a large can), and reserve the canning liquid); 4 cloves garlic; 4 tablespoons tahini; 2 tablespoons olive oil; 2 tablespoons lemon; 2 teaspoons cumin; 0.25 tsp cayenne; 1 teaspoon salt (or more to taste); 2 cups yellow onion (thinly sliced); 0.25 cup vegetable oil; 3 tablespoons tomato paste; 2 teaspoon smoked paprika; 2 teaspoon summer savory (or thyme); 0.5 teaspoon salt