Favoreats
Favoreats LLC
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INGREDIENTS
2
slice Roast beef
1
Onion, small
1 tsp
Thyme, leaves
1 tbsp
Mustard, whole-grain
1
Kosher salt
1
Pepper
1 tbsp
Butter or olive oil, unsalted
1 tbsp
Olive oil
4
slice Rye bread
2 oz
Gruyere cheese