Ham And Havarti Paninis - cooking recipe

Ingredients

1 lb ham, shaved
1 loaf of good european-style bread, sliced
8 slices havarti cheese
1/4 red onion, sliced very thinly
sweet bavarian mustard
mayonnaise
butter for the bread

Preparation

Build sandwiches by spreading a slice of bread with mayo, another with mustard.
Stack ham, cheese and onion.
Butter both sides of sandwich.
Place in frying pan over medium-high heat. Flatten with a cast iron pan or something heavy (a plate and brick might work too).
Flip, slice in half and enjoy.