Ingredients
4 cups cooked warm sushi rice
2 1/2 tablespoons rice-wine vinegar
1 teaspoon salt
1/2 cup cream cheese, room temperature
1/2 English (hothouse) cucumber, thinly sliced
2 tablespoons sesame seeds
Preparation
Line 8-inch-square glass baking dish with plastic. Toss warm rice with vinegar and salt in a large bowl. Firmly press half into dish. Spread with 1/4 cup cream cheese. Layer half the cucumber slices on top, overlapping. Repeat. Cover with plastic; top with a weighted baking dish. Refrigerate at least 2 hours or overnight.
Lift out; transfer to cutting board. Cut into 1-by-2-inch rectangles. Dip 1 short and 1 long side of each sandwich in sesame seeds. Serve within 4 hours.