Viande des Grisons is air-dried beef or "beef prosciutto" hailing from the Alps, and, sliced thinly and cut into small pieces, it's a delicious topping with brioche French toast and pineapple. If you can't find viande des Grisons, bresaola, an Italian air-dried beef, is a good substitute.
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In a nonstick skillet, heat half of the butter over high heat and cook the pineapple until golden, for 5 minutes. Combine the pineapple, viande des Grisons, and pink peppercorns in a bowl and set aside. In a bowl, whisk the egg and cream together using a fork. Add a pinch of salt and a grinding of pepper. Dip the slices of brioche in this cream.
In a nonstick skillet, heat the oil and the remaining butter over medium heat and fry the soaked slices of brioche on both sides until golden. Transfer to warmed plates and top with the pineapple marmalade.