TO A LARGE MIXING BOWL ADD THE OATS, FLOUR, BROWN SUGAR, SALT, AND GINGER. WHISK THEM TOGETHER UNTIL EVENLY COMBINED.
STIR IN THE MELTED BUTTER UNTIL THE MIXTURE’S CLUMPY. SEPARATE 1/2 OF THE CRUMBLE MIXTURE AND SET IT ASIDE.
LINE AN 8×8″ BAKING DISH WITH PARCHMENT PAPER. ADD THE REST OF THE CRUMBLE TO IT, AND FIRMLY PRESS IT IN, OUT, AND DOWN TO FORM THE BOTTOM CRUST.
SPREAD HALF OF THE STRAWBERRIES EVENLY OUT OVER TOP. SPRINKLE THE CORNSTARCH OVER TOP, FOLLOWED BY THE LEMON JUICE, AND THEN HALF OF THE REGULAR SUGAR.
SPREAD THE REST OF THE DICED STRAWBERRIES EVENLY OUT OVER TOP, AND SPRINKLE THE REST OF THE SUGAR OUT OVER TOP.
SPRINKLE THE REMAINING CRUMBLE MIXTURE EVENLY OUT OVER TOP. THERE WILL BE SOME FRUIT SHOWING THROUGH AND THAT’S OK.
BAKE THE BARS AT 375 DEGREES FOR 35-40 MINUTES, OR UNTIL THE FRUIT’S BUBBLY AND THE CRUMBLE TOPPING IS GOLDEN BROWN.
ALLOW THE BARS TO COOL COMPLETELY.
TO MAKE THE GLAZE
IN A MIXING BOWL, WHISK ALL OF THE GLAZE INGREDIENTS TOGETHER UNTIL SMOOTH.
LIFT THE COOLED OAT BARS OUT OF THE BAKING DISH USING THE PARCHMENT PAPER ENDS. TRANSFER THEM TO A CUTTING BOARD.
DRIZZLE THE GLAZE EVENLY OVER TOP.
SLICE AND SERVE THE BARS. SERVE & ENJOY!