Do not bake the bresaola for longer than 5 minutes, as it will get become too salty and too crispy.
You can make this dish a few hours in advance, without final assembly. Just leave the bresaola cups at room temperature and keep the mascarpone-walnut cream covered with cling film and refrigerated.
Metric kitchen scales are an inexpensive yet invaluable gadget to enable accurate measurement of ingredients. Store them upright in a cupboard or over your worktop and they'll only take up a tiny bit of space. Click
HERE for the ones I use (UK Link). For U.S. option click
HERE.