Which food has less impact on blood sugar?

WHITE CAKE BASE (SUGAR, BLEACHED ENRICHED FLOUR [WHEAT FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], EGG WHITES, SOYBEAN OIL, PROPYLENE GLYCOL, MONO- AND DIESTERS OF FATTY ACIDS, LEAVENING [BAKING SODA, SODIUM ACID PYROPHOSPHATE, SODIUM ALUMINUM PHOSPHATE, MONOCALCIUM PHOSPHATE], CONTAINS 2% OR LESS OF: ARTIFICIAL FLAVOR, CELLULOSE GUM, DEXTROSE, EGG YOLK, FOOD STARCH-MODIFIED, MONO- AND DIGLYCERIDES, NONFAT MILK, POLYSORBATE 60, SALT, SORBITAN MONOSTEARATE, SOY LECITHIN, XANTHAN GUM), BROWNIE BASE (SUGAR, BLEACHED ENRICHED FLOUR [WHEAT FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], PALM OIL, CORN SYRUP SOLIDS, COCOA [PROCESSED WITH ALKALI], SOYBEAN OIL, CONTAINS 2% OR LESS OF: ARTIFICIAL FLAVOR, CARAMEL COLOR, CORN STARCH, DEFATTED SOY FLOUR, EGG WHITES, LEAVENING [BAKING SODA, SODIUM ALUMINUM PHOSPHATE], NONFAT MILK, RED 40, SALT, SOY LECITHIN), SWEETENED CONDENSED MILK (MILK, SUGAR), GRAHAM CRACKERS (UNBLEACHED ENRICHED FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], GRAHAM FLOUR [WHOLE GRAIN WHEAT FLOUR], SUGAR, MOLASSES, CANOLA OIL, HIGH FRUCTOSE CORN SYRUP, PALM OIL, LEAVENING [BAKING SODA, CALCIUM PHOSPHATE], SALT), WATER, SWEETENED COCONUT (COCONUT [SODIUM METABISULFITE ADDED TO RETAIN COLOR], SUGAR, WATER, PROPYLENE GLYCOL, SALT), BUTTER (CREAM, NATURAL FLAVOR), BUTTERSCOTCH CHIPS (SUGAR, HYDROGENATED PALM KERNEL OIL AND COCONUT OIL, WHEY, SOY LECITHIN [AN EMULSIFIER], NATURAL AND ARTIFICIAL FLAVOR, ARTIFICIAL COLOR [YELLOW 6 LAKE, BLUE 2 LAKE], SALT), CHOCOLATE FLAVORED CHIPS (SUGAR, VEGETABLE OILS [PALM KERNEL, PALM], MILK, SKIM MILK, COCOA [PROCESSED WITH ALKALI], WHEY, SUNFLOWER LECITHIN, NATURAL VANILLA FLAVOR), BROWN SUGAR, CORN SYRUP.