1-First, gather and prep in 5 10 minutes. Lay out 8 slices of thick-cut artisan bread, measure cheeses such as 12 oz Gruyère and 6 oz white cheddar, soften 3 tbsp butter, and dice 2 yellow onions. For this recipe, make sure your cheeses are at room temperature for even melting. Preheating your skillet helps achieve that perfect browning we all love in grilled cheese sandwiches.

2-Next, assemble dry components in 2 3 minutes. Spread mayonnaise on one side of the bread slices as per the recipe. Add the Gruyère, white cheddar, and Muenster cheeses evenly, then sprinkle on the caramelized onions prepared earlier.

3-Butter the exterior in 1 2 minutes. Evenly spread the softened butter on the outside of each bread slice. For this recipe, heat the skillet with 1½ tbsp butter and 1 tbsp olive oil, then add onions, salt, pepper, 1 tsp thyme, and 1 tsp rosemary; sauté until browned, stir in 1 tsp brown sugar, and set aside.

4-Heat the pan in 2 minutes, then cook low and slow for 3 5 minutes per side. Place the assembled sandwiches in the skillet, reduce heat to low, and cook until the cheese melts fully. Press the slices together and flip as needed.

5-Press and finish in 1 2 minutes, rest briefly, then plate and garnish. For our recipe, slice and serve with tomato soup or a dipping sauce for extra flavor. Adaptations include using plant-based options for vegan versions, and remember to monitor for even melting.