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1
Preheat oven to 350F.
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2
Spray two 9-inch-diameter cake pans with 2-inch-high sides with nonstick spray.
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3
Using electric mixer, beat 1 1/2 cups oil and eggs in large bowl until well blended and thick, about 2 minutes.
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4
Add flour, sugar, cocoa powder, baking soda and salt; beat at low speed to blend.
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5
Increase speed; beat 1 minute longer (batter will be very thick).
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6
Stir in carrots, coconut and orange peel, then orange pieces.
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7
Divide batter between prepared pans.
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8
Bake cakes until tester inserted into center comes out clean, about 40 minutes.
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9
Cool cakes in pans 10 minutes.
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10
Turn out onto racks; cool completely.
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11
Stir chocolate chips in heavy medium saucepan over very low heat until melted and smooth.
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12
Remove from heat and cool to lukewarm.
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13
Spoon 1/3 cup chocolate into small bowl and reserve for decoration.
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14
Beat margarine and sugar in medium bowl until fluffy.
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15
Beat in remaining melted chocolate and orange juice concentrate.
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16
Place 1 cake layer on platter.
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17
Spread with 2/3 cup frosting.
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18
Top with second cake layer.
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19
Spread remaining frosting over top and sides of cake.
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20
Arrange additional orange segments around top edge of cake.
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21
Rewarm 1/3 cup reserved chocolate to pourable consistency if necessary.
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22
Drizzle orange segments with chocolate.
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23
(Can be prepared 1 day ahead.
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24
Cover with cake dome and refrigerate.)