"You've eaten grilled cheese sandwiches before, but have you ever made one with basil pesto and gouda? Now, we're talking!..."
INGREDIENTS
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4 slices sourdough bread
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2 Tbsp. mayonnaise (I use Duke's)
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1 Tbsp. basil pesto
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4 slices white American cheese
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8 oz. Gouda cheese, shredded
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2 Tbsp. butter, softened