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1
Preheat oven to 350F Set the cookie dough in a 9x13 inch baking pan.
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2
Place a sheet of plastic wrap on top and press or roll the cookie dough to fill the baking pan, evenly.
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3
Remove the plastic wrap and bake the cookie dough for 14 minutes or until lightly browned.
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4
Let the cookie cool completely in the baking pan.
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5
Invert the cookie on to the counter and return it to the baking pan upside down so that the more cooked bottom is facing up.
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6
Trim the edges if necessary.
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7
Scoop the ice cream onto the cookie evenly.
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8
If using two flavors be sure to keep them on separate sides, meeting in the middle.
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9
If very soft, spread ice cream evenly over cookie base with a spatula (keeping flavors separate).
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10
If ice cream is firm, place a piece on plastic wrap over ice cream and press or roll evenly.
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11
Freeze for 1 hour or until firm.
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12
Working quickly, remove the plastic wrap and drizzle warm chocolate sauce over ice cream layer, spreading to make a thin, even layer.
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13
Cover with plastic wrap and freeze again for 1 hour or until very firm.
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14
Again, working quickly, invert baking pan over counter and tap the bottom to release the cookie bar.
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15
Flip so its ice cream side up and cut the bar in half crosswise (making 2 9x6.5 inch rectangles).
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16
Sandwich the cookie bar rectangles together and press hard to seal.
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17
Wrap again in plastic wrap and freeze for at least 1 hour or until again firm.
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18
Meanwhile chop and combine nuts and toffee pieces.
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19
Remove ice cream bars from the freezer and unwrap.
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20
Cut into 16 (1x3inch) bars.
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21
Press one side of each bar into nut and toffee mixture.
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22
Wrap individually in plastic and return to the freezer.