PREHEAT OVEN TO 350 DEGREES F (175 DEGREES C).
IN A LARGE BOWL, MIX TOGETHER THE GROUND BEEF, EGG, WATER, BREAD CRUMBS, AND MINCED ONION. ROLL INTO SMALL MEATBALLS.
BAKE IN PREHEATED OVEN FOR 20 TO 25 MINUTES, TURNING ONCE.
IN A SLOW COOKER OR LARGE SAUCEPAN OVER LOW HEAT, BLEND THE CRANBERRY SAUCE, CHILI SAUCE, BROWN SUGAR, AND LEMON JUICE. ADD MEATBALLS, AND SIMMER FOR 1 HOUR BEFORE SERVING.