Wash the potatoes thoroughly and cook in boiling water for about 20 minutes. Clean the Brussels sprouts, carve the stem ends crosswise. Wash the sprouts. Cook in boiling salted water for 12-15 minutes. Clean and trim the mushrooms.
Heat the oil in a pan and fry the mushrooms in it until golden brown. Wash and clean the tomatoes and dab them dry. Drain the gherkins and peppers. Wash, quarter and seed the pear. Cut the pear into thin slices and sprinkle with lemon juice.
Drain the potatoes and Brussels sprouts, rinse with cold water and drain. Depending on the size, cut the potatoes in half if necessary. Remove the skin from the chorizo, cut the chorizo into slices. Cut the bread into large cubes.
Arrange prepared ingredients with Bündner meat and cranberries.
Remove the rind from all cheeses and grate them coarsely. Halve the garlic. Rub the fondue pot with the halved clove of garlic. Peel garlic and chop very finely. Stir starch with wine until smooth and add garlic to the pot.
Heat up at medium heat. Gradually add the cheese and melt while stirring. Bring to the boil briefly, season with pepper, paprika and nutmeg. Light the Rechaud and place the fondue pot on top.
Sprinkle cheese with a little paprika if necessary. Dip all prepared ingredients bit by bit into the melted cheese. Stir the cheese more often.