Wash and dry spinach (or buy bagged, pre-washed spinach). Small dice (1/4" x 1/4") the pancetta, crisp iton low heat and drain off the fat, reserving 2 tablespoons. Set aside. Crumble the blue cheese and set aside Zest the lemons then cut in half and juice. In a saucepan boil 2 cups salt water. Blanch the lemon zest by dropping it into boiling water for 10-20 seconds. Remove zest and immediately run under cold water. Set aside.
Saute the minced shallots in reserved fat until translucent. Add half of the capers, half of the blanched zest and 3 tablespoons of lemon juice, balsamic vinegar, sugar, salt and pepper. Warm over heat. In a bowl toss the spinach, remaining capers, pancetta and crumbled cheese. Toss the salad with warm dressing Garnish with remaining zest and toasted almonds and serve immediately.