سلام! بسم الله
1. Start with a strip of egg roll or spring roll shell that is about 3 inches by 8 or 9 inches (I am demonstrating with paper, lol)
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2. Fold a small triangle at the bottom.
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The angle it makes with the side of the sheet should be about 45 degrees :-)
3. Apply a paste of flour and water (makes a glue) to the small triangle
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4. Fold the triangle from the left to the right and press the small triangle down to stick it together. This makes a triangle shaped pocket. Fill the pocket with whatever you want (I really love spiced ground beef or cheese) Fillings should be precooked.
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5. Fold again, this time from right to left, sealing the pocket
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6. At this point you should cut the extra shell off at the tip of the triangle for a neater looking samboosa. Apply more *glue* to the small triangle that is left.
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7. Fold small triangle over to the middle of the big triangle
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8. Press to seal the samboosa
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Enjoy and let me know if you give it a try!