# What You'll Need:
→ Bread & Cheese
01 - 4 slices hearty sourdough or white sandwich bread
02 - 4 slices sharp cheddar cheese (about 4.2 oz)
03 - 2 slices Monterey Jack cheese (optional, about 2.1 oz)
→ Sriracha Mayo
04 - 3 tablespoons mayonnaise
05 - 1 to 1.5 tablespoons sriracha sauce, adjusted to taste
06 - 1 teaspoon fresh lime juice
→ Butter
07 - 2 tablespoons unsalted butter, softened
# Step-by-Step Directions:
01 - Combine mayonnaise, sriracha sauce, and lime juice in a small bowl. Stir until smooth and adjust spiciness as desired.
02 - Lay out bread slices and evenly spread a thin layer of softened butter on one side of each slice to serve as the sandwich exterior.
03 - Place cheddar and Monterey Jack cheese on the unbuttered sides of two bread slices. Top with remaining bread slices, buttered sides facing out.
04 - Spread a generous layer of the sriracha mayo onto the buttered exterior of each assembled sandwich.
05 - Warm a nonstick skillet or griddle over medium-low heat until hot.
06 - Place sandwiches mayo side down in skillet. While cooking the first side, spread sriracha mayo on the uncovered top. Grill each side for 3 to 4 minutes, pressing gently with a spatula until bread is golden brown and cheese melts.
07 - Remove sandwiches from skillet, let rest for one minute, then slice and serve warm.