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1
Combine 6 tablespoons butter and 1/4 cup corn syrup in heavy small saucepan.
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2
Stir over low heat until well blended.
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3
Add semisweet chocolate, 1/4 cup water and instant espresso powder and stir until chocolate melts, espresso dissolves and sauce is smooth.
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4
Transfer sauce to small heatproof pitcher.
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5
Preheat oven to 350F.
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6
Spray 9-inch-diameter tart pan with removable bottom with nonstick spray.
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7
Mix cookie crumbs, butter and espresso in medium bowl.
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8
Press crumb mixture firmly onto bottom and up sides of prepared tart pan.
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9
Bake until crust looks dry and feels firm to touch, about 20 minutes.
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10
cool crust completely.
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11
Meanwhile, using ice cream scoop, scoop chocolate ice cream into balls and arrange in single layer on baking sheet; freeze until firm.
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12
Using clean scoop, scoop coffee ice cream into balls and arrange in single layer on another baking sheet; freeze until firm.
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13
In cooled crust, alternate chocolate and coffee ice cream balls in single tightly packed layer.
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14
Form second layer, then third layer of ice cream balls, mounding in center.
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15
Drizzle 1/2 cup mocha sauce over.
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16
Freeze tart until ice cream and sauce topping are firm, about 2 hours.
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17
(Can be prepared 1 day ahead.
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18
Cover tart and keep frozen.
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19
Cover sauce and let stand at room temperature.)
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20
Gently press up pan bottom to loosen crust; remove pan sides.
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21
Transfer ice cream tart to platter.
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22
Let stand 15 minutes to soften slightly.
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23
Press cookies upright into ice cream, if desired.
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24
Cut tart into wedges.
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25
Serve, passing remaining sauce separately.