Combine first 4 ingredients in a small bowl; stir in 1/4 cup melted butter. Use fingers to pinch streusel into big clumps. Set aside.
Beat 1 cup butter at medium speed with an electric mixer about 2 minutes or until creamy. Gradually add 2 cups each granulated and dark brown sugar, beating at medium speed 5 to 7 minutes. Add eggs, 1 at a time, beating just until yellow disappears.
Stir together pumpkin and 1/4 cup rum in a bowl. Combine flour and next 7 ingredients in a medium bowl. Add flour mixture to butter mixture alternately with pumpkin, beginning and ending with flour.
Pour half of batter into a well-greased and floured 12-cup Bundt pan. (We recommend greasing pan with shortening.) Sprinkle batter with streusel; top with remaining batter.
Bake at 325° for 1 hour and 28 minutes or until a long wooden pick inserted in center comes out clean. Cool in pan on a wire rack 10 minutes; remove from pan, and let cool completely.
Combine 3/4 cup brown sugar, whipping cream, and 1/4 cup unsalted butter in a medium saucepan. Cook, stirring constantly, over medium-low heat, until butter melts and sugar dissolves. Increase heat to medium-high, and bring to a boil. Boil 3 minutes. Remove from heat, and stir in 1 tsp. rum.
Place powdered sugar in a bowl; pour brown sugar mixture over powdered sugar, stirring with a wire whisk 1 minute or until smooth. Let cool 20 to 25 minutes or until lukewarm. Spoon icing over cooled cake, and let stand until icing is firm.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	1118.22 Kcal (4682 kJ)
Calories from fat	449.09 Kcal
		% Daily Value*
Total Fat	49.9g	77%
Cholesterol	144.06mg	48%
Sodium	542.05mg	23%
Potassium	995.01mg	21%
Total Carbs	160.67g	54%
Sugars	118.63g	475%
Dietary Fiber	2.98g	12%
Protein	10.73g	21%
Vitamin C	2mg	3%
Vitamin A	0.3mg	9%
Iron	2.2mg	12%
Calcium	158.4mg	16%

Amount Per 100 g
Calories	401.58 Kcal (1681 kJ)
Calories from fat	161.28 Kcal
		% Daily Value*
Total Fat	17.92g	77%
Cholesterol	51.73mg	48%
Sodium	194.66mg	23%
Potassium	357.34mg	21%
Total Carbs	57.7g	54%
Sugars	42.6g	475%
Dietary Fiber	1.07g	12%
Protein	3.85g	21%
Vitamin C	0.7mg	3%
Vitamin A	0.1mg	9%
Iron	0.8mg	12%
Calcium	56.9mg	16%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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