Shred the cheese yourself: Block cheese generally melts more smoothly than pre-shredded cheese, which often contains anti-caking ingredients.
Keep the smoked gouda: You can play around with the cheddar, but I wouldn't replace all the smoked gouda. Its smoky flavor is what makes this dip different from a basic cheddar cheese dip.
Adjust the consistency: If the dip is thicker than you want after baking, stir in a splash of heavy cream until it's right for dipping.
Give it a few minutes before serving: I usually let it sit for about 10 minutes after it comes out of the oven. It stays plenty warm, but you're less likely to burn your mouth on molten cheese.
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