Toss the cheese with the flour or starch and set aside.
In a large sauce pan over medium-low heat melt the butter and saute the minced garlic just until it is fragrant and begins to soften.
Move the pan away from the heat temporarily and slowly add the beer, stirring constantly. Return to the stove ring, and simmer for 2-3 minutes to reduce Add the heavy cream and oregano and simmer for another 2-3 minutes.
Remove from the heat and slowly begin to incorporate the prepared cheese, about a handful at a time, stirring as you go. Once all the cheese has melted into the sauce you can place it back over a stove ring on low heat for a final thermal boost, about 1 minute. Stir again and enjoy while warm.
Notes
*Cheddar, fontina, colby, gouda or a combination. Measure the shredded cheese. If grating from a cheese block, do so while cold, then allow to come to room temperature.**We recommend a Czech pilsner or a Munich helles. American craft lager would be great too. Look for a dominant malt profile with light kilned malt and herbal tasting hops with low bitterness.To reheat the sauce without breaking it: Transfer it from the container in which you refrigerated it to a sauce pan and add 1-2 tablespoon heavy cream. Place it over low heat and gently stir until homegenous and warmed through.