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In 9 or 10 inch spring form pan, combine crumbs, melted butter, and 1/4 cup sugar. Press evenly over bottom of pan and halfway up sides. Bake at 375 for 7-8 minutes, no longer.
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Cream room temperature cream cheese well, add sugar, and cream until smooth, scraping sides and bottom of bowl frequently to integrate any cream cheese lumps.
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Cream in sour cream, eggs, flour and vanilla. When smooth once more, stir in lime juice.
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Pour over prepared crust. Return to 375 oven for 15 minutes.
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Lower temperature to 250 and continue baking 50 minutes for 10 inch pan, 55 minutes for 9 inch pan.
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Cool on wire rack IN PAN for 20 minutes. Run a sharp knife around edge to loosen cheesecake, but do NOT remove from pan.
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Refrigerate at least 6 hours before serving.