Which food has less impact on blood sugar?

BROWNIE (ENRICHED FLOUR BLEACHED (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), SUGAR, VEGETABLE SHORTENING (PALM OIL WITH PROPYLENE GLYCOL MONO DIESTERS OF FATS AND FATTY ACIDS, MONO-AND DIGLYCERIDES, SOY LECITHIN), DEXTROSE, SODIUM BICARBONATE, MODIFIED TAPIOCA STARCH, SALT, SODIUM ALUMINUM PHOSPHATE, MONOCALCIUM PHOSPHATE, CELLULOSE GUM, ARTIFICIAL FLAVOR, YELLOW 5, YELLOW 6, VEGETABLE OIL BLEND (PALM OIL AND SOYBEAN OIL), WATER, SALT, CONTAINS LESS THAN 2% OF SOY LECITHIN, VEGETABLE MONO & DIGLYCERIDES, POTASSIUM SORBATE (A PRESERVATIVE), CITRIC ACID, NATURAL & ARTIFICIAL FLAVOR, BETA CAROTENE (COLOR), VITAMIN A PALMITATE ADDED, WHEY, MILK, DIPOTASSIUM PHOSPHATE, CARRAGEENAN, VITAMIN D3, IMITATION VANILLA FLAVOR (WATER, CARAMEL COLOR, VANILLIN (AN ARTIFICIAL FLAVOR), ETHYL VANILLIN (AN ARTIFICIAL FLAVOR), AND 0.1% POTASSIUM SORBATE, (ADDED AS A PRESERVATIVE))), FROSTING (SUGAR, VEGETABLE SHORTENING (CONTAINS 1 OR MORE OF THE FOLLOWING HYDROGENATED SOYBEAN OIL, SOYBEAN OIL AND/OR HYDROGENATED COTTONSEED OIL, PALM KERNEL OIL, AND HYDROGENATED PALM KERNEL OIL), WHEY POWDER, WHOLE MILK SOLIDS, NONFAT DRY MILK SOLIDS, SOY LECITHIN (AN EMULSIFIER), SALT, WATER, CORN SYRUP, CONTAINS 2% OR LESS OF CORN STARCH, NATURAL AND ARTIFICIAL FLAVOR, MONO AND DIGLYCERIDES (WITH PRESERVATIVE MIXED TOCOPHEROLS, ASCORBIC ACID, CITRIC ACID), POTASSIUM SORBATE (PRESERVATIVE), TITANIUM DIOXIDE (COLOR), POLYSORBATE 60, DEXTROSE, AGAR, CITRIC ACID, YELLOW 5, YELLOW 6), SPRINKLES (SUGAR, RICE FLOUR, PALM & PALM KERNEL OIL, GUM ARABIC, XANTHAN GUM, MONO- DIGLYCERIDES, SOY LECITHIN, POLYSORBATE 60, CARNAUBA WAX, CONFECTIONER'S GLAZE, DEXTRIN, VANILLIN (AN ARTIFICIAL FLAVOR), FD&C YELLOW 5 LAKE, FD&C YELLOW 6 LAKE, FD&C BLUE 1 LAKE, FD&C RED 3, FD&C RED 40, FD&C BLUE 2).