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Sift the flour, baking soda, and salt together in your mixing bowl and set aside.
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In another mixing bowl, cream your softened butter, oil with the sugar until well blended before beating in the eggs.
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Add some of the flour mixture to the creamed ingredients and mix with your electric mixer, alternating with the water until you finish incorporating.
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This will be a sticky batter.
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Grease a baking pan about the size of 11-1/2 inches by 13-1/2 inches to accommodate the bars.
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Pour in half the dough batter in the pan and spread for the bottom.
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Next, top with about one-half cups of the strawberry jam (you can use more if this is your preference) and spread over the batter in the pan.
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Top with the remaining batter, spreading it over the jam to seal it up.
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Finish with the one-half cup of the grated coconut.
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Bake in a 350-degree oven for about 20-25 minutes, depending on how your oven is regulated. Test with a toothpick, cake tester or a slender knife to see if anything sticks determining if it is done.