sheet. Generally, custard quiches should be baked for 35 to 40 minutes, or until the custard is just set. Let the quiche rest for 8 to 10 minutes before slicing and serving it. Make one 9 to 28 cm or four 10 cm tarts. This is the basic custard mixture that goes into many of our quiches. Some of our favorite combinations appear below, but we hope you'll use them as inspiration for your own creations. Just about any combination of grated cheese, vegetables, leftover meat, poultry, or seafood, or whatever else appeals to you can be added to this all-purpose custard.JM. Mary Prentiss Inn Cambridge, Massachusetts ----